Precision spectroscopy with a single 40Ca+ ion in a Paul trap*
Guan Huaa),b), Huang Yaoa),b), Liu Pei-Lianga),b), Bian Wua),b),c), Shao Hua),b),c), Gao Ke-Lina),b)†
       
Schematic diagram of magic wavelength measurement setup. DL: diode laser; AOM: acousto-optic modulator; 1/2 λ : half wave plate; PD: photo diode; PBS: polarized beam splitter.